<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        ul li{
            color: red;
        }
    </style>
</head>
<body>
    <ul>
        <li>列表1</li>
        <li>列表2</li>
        <li>列表3</li>
        <div>
            <ol>
            <li>列表4</li>
            </ol>
        </div>

    </ul>
    
</body>
</html>